I have read this article: A Multiserver Setup With Dedicated Web, Email, DNS And MySQL Database Servers On Debian 5.0 With ISPConfig 3 but I have not seen any physical network connection analysis. I have a technical questions:

1. Which is the best way to connect a basic network solution to the web?
2. How the physical network is connected between themselves?
3. Which are the main IPtables rules?

Attachment:
network: I have created a little pdf diagram.

Regards

Attached Files:

There is no special network topology needed. Use e.g. a 1GBit switch and connect all your servers to that switch. Then either connect the switch to the internet or put a router between the switch and the internet depending on your internet connection.

Every router is different, and I've never done it for more than 1 public address. So, Id start with just one server. Different services run on different ports so you can either forward all traffic to your server or just specific services.

If you want all traffic to your server you can often make a rule in the firewall menu on the router to forward all traffic, also referred to as dmz.

Or you can choose to forward specific traffic, eg, forward all traffic on port 80 (for web pages) to your internal ip.

Whilst you're exploring your router's settings you may find a setting to forward different public ip to internal ip.

Anyway I would like to suggest to the ISPConfig staff to focus this kind of problem in order to complete the good service that they offer to all the community.

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Your problem is not ispconfig specific and nothing that could or has to be handled by ispconfig.

As Toucan pointed out, every router is different. So you have to take a look in the manual that comes with your router for detailed informtaion on how to install the router that you use in your network.

As you use a Dell router, go to the dell website, I'am sure they offer the manual for your router in their download section.